Thanks, that does help. However, I went a little overboard on this release, so it's probably not a mistake. I just can't pass up on a bargain.

If it's processing the standard base shipping OK, then it's probably base + an increment per additional item, possibly with an additional insurance price based on the total. If I really wanted to play with it, I could try putting together different order combinations and then bailing before finalizing, but I don't want to disrupt the store right now.